export let vertexShaderSource = `
      attribute vec3 a_position;
      uniform mat4 u_project;
      uniform mat4 u_rotatey;
      uniform mat4 u_rotatez;
      attribute vec3 a_color;
      varying vec3 color;
      void main (){
        // vec2 xy = a_position.xy;
        // gl_Position = vec4(xy, a_position.z, 1);
        
        // gl_Position = vec4(a_position, 1);
        
        // gl_Position = u_project * vec4(a_position, 1);
        
        // vec2 xy = a_position.xy;
        // gl_Position = u_project * u_rotatey * vec4(a_position.xy, a_position.z - 10.0, 1.0);
      
        vec4 a = u_rotatey * u_rotatez * vec4(a_position, 1);
        gl_Position = u_project * vec4(a.xy, a.z - 5.0, 1);
        color = a_color;
      }
`
